Description
Product Overview
The high-pressure connection tube is installed between the common rail oil pipe and the injector, undertaking the functions of high-pressure fuel transportation and oil circuit sealing and positioning. It steadily delivers high-pressure fuel to the internal of the injector. Under long-term engine high-frequency high-pressure impact, cabin high-temperature, and diesel corrosion conditions, the tube may wear, the sealing rubber ring may age, and the step may deform, resulting in oil circuit leakage, continuous drop in rail pressure, and uneven fuel supply for each cylinder, which can cause engine acceleration weakness, idle jitter, starting difficulties, and increased fuel consumption. This product is an integrated precision high-pressure tube. It undergoes ultra-high pressure resistance, coaxial accuracy, and sealing performance testing upon leaving the factory. The dimensions and threads are standardized. The assembly does not require secondary processing. It is suitable for the maintenance and replacement of common rail injector systems in heavy trucks, construction machinery, and generator sets.
Unique Core Advantages of Each Product
Integrated long straight cylindrical mirror surface guide rod, no pressure loss in high-pressure fuel supply
The entire rod body is formed as one piece, with the outer wall polished to a mirror finish and the internal through holes smooth without burrs. The high-pressure fuel flows smoothly without vortex pressure relief, and the rail pressure is stably transmitted throughout the process, ensuring uniform injection pressure for the injector.
Multiple levels of positioning and limiting steps in the middle, precise positioning to prevent deviation
The multi-stage stepped positioning structure is assembled by fitting the injector housing limit slot, eliminating the possibility of assembly skew or loosening, avoiding side leakage of high-pressure fuel, maintaining the coaxial state of the oil circuit for a long time, and reducing component wear.
Pre-installed matching oil-resistant sealing rubber ring, multiple layers of barrier against high-pressure leakage
The matching oil-resistant rubber seal ring is resistant to diesel and high temperatures. It adheres to the step sealing surface and forms a double sealing barrier after assembly, resisting thousands of bar of high-pressure fuel impact and preventing oil leakage at the connection between the oil pipe and the injector.
Standard precision threads at the tail, locking firmly and not prone to slippage
The tail is rolled to form standard external threads. The threads are uniform and fine, with sufficient hardness. The torque applied by the wrench is evenly distributed, making it less likely to slip or loosen under long-term vibration conditions, ensuring a firm connection of the oil circuit.
Conical guide cone head at the front end, smoothly introducing into the internal oil circuit of the injector
The conical gradual end head guides the assembly smoothly into the oil inlet cavity of the injector, without scratching the internal sealing surface, protecting the precision components inside the injector, and extending the lifespan of the entire injector.
Overall quenched and hardened alloy steel, resistant to high pressure and diesel corrosion
The high-hardness alloy steel is forged as one piece and undergoes quenching and hardening treatment. It is resistant to high-pressure impact, diesel corrosion, and high-temperature deformation. It is unlikely to deform or crack in mining areas, long-distance heavy-load 24-hour continuous operation, reducing the frequency of maintenance and replacement costs.
Application Scenarios
Suitable for long-distance freight trucks, large mining excavators, heavy loaders, and high-power diesel generators equipped with high-pressure common rail fuel supply systems, suitable for oil circuit maintenance of heavy-duty diesel engines operating in hot and heavy-duty conditions with continuous full-load operation.
Product Basic Parameters
Product Name: Common Rail Injector High-Pressure Connection Tube
Part Number: F00RJ01620
Main Material: Quenched and hardened alloy steel
Structural Feature: Integrated long straight cylindrical guide rod, multiple levels of positioning and limiting steps in the middle, pre-installed sealing rubber ring, tail lock threads, front conical guide end head
Application Conditions: Ultra-high oil pressure impact, cabin long-term high-temperature, continuous 24-hour full-load heavy-duty electronic common rail diesel engine oil circuit
Product Status: New precision high-pressure tube, completed high-pressure resistance, coaxial accuracy, and sealing performance calibration and testing upon leaving the factory
Packaging: Each product is independently protected by a hard tube, with plastic plugs at both ends for protection, preventing thread and cone head from being scratched, supporting single-piece and bulk purchase, and suitable for cross-border small package and full-box logistics
